Stormwater & Wastewater Tools
Design & Planning
National Stormwater Calculator (SWC)
Estimate the annual amount of rainwater and frequency of runoff from a specific site where green infrastructure is used as low impact development controls with the National Stormwater Calculator (SWC).
Distribution & Planning
Storm Water Management Model (SWMM)
Plan, analyze, and design approaches related to stormwater runoff, combined and sanitary sewers, and other drainage systems, with the Stormwater Management Model (SWMM).